USAAAO — 2024 First Round

Abhay looks at the light curves for two main sequence stars A and B, which you can assume are blackbodies. A has its peak at a frequency two times as high as that of B. By looking at the depth of spectral lines, Abhay can also determine that A has higher metallicity than B. Abhay makes the following statements: P: A has higher absolute magnitude than B. Q: A is older than B. Which of the following is true?